PHP_递归函数时return的Bug
最近在用PHP写一些设计模式的小例子,有大量的设计模式都会递归调用对象或者函数。有的时候需要返回处理状态,就会用到return。在JAVA中 只要在函数内部return就可以得到最后的结果。而在PHP中必须要在掉过递归函数的时候加上return才能正常使用。
举个例子
01
02
/**
03
*这样的写法在调用时,当$i
04
*/
05
function TestReturn($i){
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if($i
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{
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$i++;
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TestReturn($i);
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}
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return $i;
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}
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/**
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*在PHP中,必须要在递归调用函数时加上return
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*/
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function TestReturn($i){
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if($i
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{
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$i++;
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return TestReturn($i);
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}
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return $i;
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}
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?>
作者:四云麒麟

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